问基于PHP crawler的IP切换

EN

<?php
define('LOG', Mutex::create());

/* make output when writing to stdout thread safe (so, readable) */
function slog($message, $args = []) {
    $args = func_get_args();
    if (($message = array_shift($args))) {
        Mutex::lock(LOG);
        echo vsprintf($message, $args);
        Mutex::unlock(LOG);
    }
}

class WebCrawler extends Thread {

    public function __construct($interface) {
        $this->interface = $interface;
    }

    public function run() {
        slog("Thread %lu using %s\n", 
            $this->getThreadId(), $this->getInterface());
    }

    public function getInterface() { 
        return $this->interface; 
    }

    protected $interface;
}

$interfaces = [
    "192.168.0.1",
    "192.168.0.2",
    "192.168.0.3",
    "192.168.0.4",
    "192.168.0.5"
];

$threads = [];
$thread = 0;
while (count($threads) < count($interfaces)) {
    $threads[$thread] = new WebCrawler($interfaces[$thread]);
    $threads[$thread]->start();
    $thread++;
}

foreach ($threads as $thread)
    $thread->join();

Mutex::destroy(LOG);
?>